Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 59
... Push or pull . The first and most descrip- tive idea of force comes from your everyday experience . Everyone has had the experience of pulling and pushing with his arms and legs . Also everyone has had the experience of being pushed on ...
... Push or pull . The first and most descrip- tive idea of force comes from your everyday experience . Everyone has had the experience of pulling and pushing with his arms and legs . Also everyone has had the experience of being pushed on ...
Σελίδα 60
... push on the ball in the direction at right angles to its initial direction of motion . Result ? A push or pull can set an object in motion , change its direction of motion , speed it up , or slow it down . Notice that all of these ...
... push on the ball in the direction at right angles to its initial direction of motion . Result ? A push or pull can set an object in motion , change its direction of motion , speed it up , or slow it down . Notice that all of these ...
Σελίδα 76
... push on the earth and the earth pushes back with an equal force . Boy A's hands pull on the cart and the cart pulls back on the hands . Boy B's feet push on the earth and the earth pushes back . Boy B's hands pull on the cart and the ...
... push on the earth and the earth pushes back with an equal force . Boy A's hands pull on the cart and the cart pulls back on the hands . Boy B's feet push on the earth and the earth pushes back . Boy B's hands pull on the cart and the ...
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UNIT | 1 |
UNIT | 49 |
distributors of the John Frankenheimer film Grand Prix A General Electric Company 337 bottom rightGeneral Electric | 92 |
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acid acting ACTIVITY added amount atoms beam become body called carbon causes cell charges chemical chemical change circuit color combining compounds connected contains copper determined direction distance earth effort electrical electrical charges electrons elements energy engine equal experiment explain facts feet FIGURE flow force fuel gain gives glass grams happens heat hour hydrogen inch increases ions iron kinds lamp laser layer length light liquid magnet mass materials matter means measure metal miles mirror molecules moon motion move nature needed object oxygen particles piece plane plate pole position pounds pressure produced push rays reflected resistance Result rock scientists shell side sodium solution sound space speed spring stars Study surface temperature Terms theory travels tube turns units waves weight wire